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You searched for: Journal name Waste management Remove constraint Journal name: Waste management Publication year rev 7985-2015 Remove constraint Publication year rev: 7985-2015 Source 2015 v.43 Remove constraint Source: 2015 v.43
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1. Alkaline hydrothermal liquefaction of swine carcasses to bio-oil

Author:
Ji-Lu Zheng; Ming-Qiang Zhu; Hai-tang Wu
Source:
Waste management 2015 v.43 pp. 230-238
ISSN:
0956-053X
Subject:
biofuels; boilers; energy; energy recovery; esters; fossil fuels; furnaces; heat; hydrocarbons; ketones; liquefaction; organic acids and salts; pH; pig carcasses; temperature; viscosity
Abstract:
... It is imperative that swine carcasses are disposed of safely, practically and economically. Alkaline hydrothermal liquefaction of swine carcasses to bio-oil was performed. Firstly, the effects of temperature, reaction time and pH value on the yield of each liquefaction product were determined. Secondly, liquefaction products, including bio-oil and solid residue, were characterized. Finally, the en ...
DOI:
10.1016/j.wasman.2015.05.010

2. Anaerobic digestion of paunch in a CSTR for renewable energy production and nutrient mineralization

Author:
Valentine Nkongndem Nkemka; Douglas H. Marchbank; Xiying Hao
Source:
Waste management 2015 v.43 pp. 123-129
ISSN:
0956-053X
Subject:
anaerobic digestion; biogas; calcium; ions; magnesium; methane; methane production; mineralization; nutrients; potassium; waste management
Abstract:
... A laboratory study investigated the anaerobic digestion of paunch in a continuous stirred tank reactor (CSTR) for the recovery of biogas and mineralization of nutrients. At an organic loading rate (OLR) of 2.8gVSL−1day−1 with a 30-day hydraulic retention time (HRT), a CH4 yield of 0.213Lg−1VS and CH4 production rate of 0.600LL−1day−1 were obtained. Post-anaerobic digestion of the effluent from the ...
DOI:
10.1016/j.wasman.2015.05.016

3. Analyzing the success of the volume-based waste fee system in South Korea

Author:
Seejeen Park; T.J. Lah
Source:
Waste management 2015 v.43 pp. 533-538
ISSN:
0956-053X
Subject:
issues and policy; municipal solid waste; recycling; South Korea
Abstract:
... For more than a decade, South Korea has been ranked first among the OECD (Organization for Economic Cooperation and Development) members in their municipal solid waste (MSW) recycling rate. One of the major contributing factors for its outstanding MSW recycling performance is the volume-based waste fee (VWF) system implemented in 1995. Despite the perceived success of VWF, there has been few resea ...
DOI:
10.1016/j.wasman.2015.06.011

4. Assessment of biogas production from MBT waste under different operating conditions

Author:
Sara Pantini; Iason Verginelli; Francesco Lombardi; Charlotte Scheutz; Peter Kjeldsen
Source:
Waste management 2015 v.43 pp. 37-49
ISSN:
0956-053X
Subject:
ambient temperature; ammonia; biogas; climate; inoculum; landfills; methanogens; microbial activity; volatile fatty acids; wastes; water content
Abstract:
... In this work, the influence of different operating conditions on the biogas production from mechanically–biologically treated (MBT) wastes is investigated. Specifically, different lab-scale anaerobic tests varying the water content (26–43% w/w up to 75% w/w), the temperature (from 20 to 25°C up to 55°C) and the amount of inoculum have been performed on waste samples collected from a full-scale Ita ...
DOI:
10.1016/j.wasman.2015.06.019

5. Boosting methane generation by co-digestion of sludge with fruit and vegetable waste: Internal environment of digester and methanogenic pathway

Author:
Francesco Di Maria; Martino Barratta
Source:
Waste management 2015 v.43 pp. 130-136
ISSN:
0956-053X
Subject:
Methanosaeta; ammonia; anaerobic digestion; biogas; high-throughput nucleotide sequencing; metagenomics; methane production; methanogens; oxidation; sludge; vegetables; waste management
Abstract:
... The effects of anaerobic co-digestion of waste-mixed sludge with fruit and vegetable waste (FVW) on the methane generation of a mesophilic digester was investigated. Organic loading rates (OLR) were 1.46kgVS/m3day, 2.1kgVS/m3day and 2.8kgVS/m3day. Increase in the OLR due to FVW co-digestion caused modification of the internal environment of the digester, mainly in terms of N-NH4 (mg/L). Correspond ...
DOI:
10.1016/j.wasman.2015.06.007

6. Comparative evaluation of anaerobic digestion for sewage sludge and various organic wastes with simple modeling

Author:
Taira Hidaka; Feng Wang; Jun Tsumori
Source:
Waste management 2015 v.43 pp. 144-151
ISSN:
0956-053X
Subject:
agricultural wastes; anaerobic digestion; biodegradability; calcium; chemical oxygen demand; energy; fertilizers; food waste; magnesium; methane; methane production; municipal solid waste; nitrogen content; potassium; sewage sludge; simulation models; sodium; wastewater treatment
Abstract:
... Anaerobic co-digestion of sewage sludge and other organic wastes, such as kitchen garbage, food waste, and agricultural waste, at a wastewater treatment plant (WWTP) is a promising method for both energy and material recovery. Substrate characteristics and the anaerobic digestion performance of sewage sludge and various organic wastes were compared using experiments and modeling. Co-digestion impr ...
DOI:
10.1016/j.wasman.2015.04.026

7. Comparing mesophilic and thermophilic anaerobic digestion of chicken manure: Microbial community dynamics and process resilience

Author:
Qigui Niu; Yasuyuki Takemura; Kengo Kubota; Yu-You Li
Source:
Waste management 2015 v.43 pp. 114-122
ISSN:
0956-053X
Subject:
ammonia; ammonium nitrogen; anaerobic digestion; bacteria; bacterial communities; biogas; bioreactors; community structure; correspondence analysis; fermentation; methane; methane production; phylogeny; poultry manure; volatile fatty acids; washing; waste management
Abstract:
... While methane fermentation is considered as the most successful bioenergy treatment for chicken manure, the relationship between operational performance and the dynamic transition of archaeal and bacterial communities remains poorly understood. Two continuous stirred-tank reactors were investigated under thermophilic and mesophilic conditions feeding with 10%TS. The tolerance of thermophilic react ...
DOI:
10.1016/j.wasman.2015.05.012

8. Concentration of novel brominated flame retardants and HBCD in leachates and sediments from selected municipal solid waste landfill sites in Gauteng Province, South Africa

Author:
O.I. Olukunle; O.J. Okonkwo
Source:
Waste management 2015 v.43 pp. 300-306
ISSN:
0956-053X
Subject:
ethane; flame retardants; landfills; leachates; liquid-liquid extraction; municipal solid waste; sediments; sulfates; water quality; South Africa
Abstract:
... In this study leachate and sediment samples were collected from six municipal solid waste landfill sites across Gauteng Province in South Africa to determine the levels of 2-ethylhexyl 2,3,4,5 tetrabromobenzoate (EH-TBB), 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), decabromodiphenyl ethane (DBDPE), bis(2-ethylhexyl)-3,4,5,6-tetrabromo-phthalate (BEH-TEBP) and hexabromocyclododecane (HBCD). Soxh ...
DOI:
10.1016/j.wasman.2015.07.009

9. Current status of solid waste management in small island developing states: A review

Author:
Romeela Mohee; Sumayya Mauthoor; Zumar M.A. Bundhoo; Geeta Somaroo; Nuhaa Soobhany; Sanjana Gunasee
Source:
Waste management 2015 v.43 pp. 539-549
ISSN:
0956-053X
Subject:
anaerobic digestion; burning; composting; glass; management systems; metals; municipal solid waste; plastics; recycling; roads; waste disposal; waste treatment; Caribbean; China; Indian Ocean
Abstract:
... This article reviews the current status of waste management in Small Island Developing States (SIDS) and the challenges that are faced in solid waste management. The waste generation rates of SIDS were compared within the three geographic regions namely Caribbean SIDS, Pacific SIDS and Atlantic, Indian Ocean, Mediterranean and South China (AIMS) SIDS and with countries of the Organisation for Econ ...
DOI:
10.1016/j.wasman.2015.06.012

10. Effectiveness of oscillatory gutter brushes in removing street sweeping waste

Author:
Libardo V. Vanegas-Useche; Magd M. Abdel-Wahab; Graham A. Parker
Source:
Waste management 2015 v.43 pp. 28-36
ISSN:
0956-053X
Subject:
brushes; cutting; gravel; waste management; wastes
Abstract:
... In this paper, the novel concept of oscillatory gutter brushes of road sweepers is studied experimentally. Their effectiveness in removing different debris types is studied by means of a brushing test rig. The debris types dealt with are medium-size gravel, small and fine particles, wet thin debris, and compacted debris. The performance of two types of brushes, cutting and F128, under diverse oper ...
DOI:
10.1016/j.wasman.2015.05.014

11. Enrichment of heavy metals in fine particles of municipal solid waste incinerator (MSWI) fly ash and associated health risk

Author:
Jizhi Zhou; Simiao Wu; Yun Pan; Lingen Zhang; Zhenbang Cao; Xiaoqiao Zhang; Shinichi Yonemochi; Shigeo Hosono; Yao Wang; Kokyo Oh; Guangren Qian
Source:
Waste management 2015 v.43 pp. 239-246
ISSN:
0956-053X
Subject:
cadmium; chemical speciation; chromium; copper; fly ash; heavy metals; incinerators; iron; lead; manganese; municipal solid waste; particle size; recycling; risk; risk assessment; toxicity; zinc
Abstract:
... During the pretreatment and recycling processes, the re-suspended dust from municipal solid waste incinerator (MSWI) fly ash might pose a significant health risk to onsite workers due to its toxic heavy metal content. In this work, the morphological and mineralogical characteristics of fly ash in different particle sizes are presented. The concentrations of seven trace elements (Zn, Pb, Cu, Cd, Cr ...
DOI:
10.1016/j.wasman.2015.06.026

12. Evaluation of the impact of lime softening waste disposal in natural environments

Author:
Nawaf I. Blaisi; Justin Roessler; Weizhi Cheng; Timothy Townsend; Souhail R. Al-Abed
Source:
Waste management 2015 v.43 pp. 524-532
ISSN:
0956-053X
Subject:
additives; aquifers; body water; iron; leaching; organic matter; soil amendments; soil properties; surface water; waste disposal; water treatment; Florida
Abstract:
... Drinking water treatment residues (WTR), generated from the lime softening processes, are commonly reused or disposed of in a number of applications; these include use as a soil amendment or a subsurface fill. Recently questions were posed by the Florida regulatory community on whether lime WTR that contained a small percentage of other treatment additives could appropriately be characterized as l ...
DOI:
10.1016/j.wasman.2015.06.015

13. Health Care Waste generation rates and patterns: The case of Lebanon

Author:
Olivia Maamari; Cedric Brandam; Roger Lteif; Dominique Salameh
Source:
Waste management 2015 v.43 pp. 550-554
ISSN:
0956-053X
Subject:
health services; hospitals; monitoring; statistical analysis; variance; waste management; wastes; Lebanon
Abstract:
... The objective of this study is to analyze Infectious Health Care Waste generation rates and patterns in Lebanon. Therefore, the quantities generated during five years by 57 hospitals from a total of 163 in the country have been analyzed. The seasonal evolution of Infectious Health Care Waste production and the evolution of the evaluation of the trends over years have been studied. Besides, the gen ...
DOI:
10.1016/j.wasman.2015.05.005

14. Heavy element accumulation in Evernia prunastri lichen transplants around a municipal solid waste landfill in central Italy

Author:
Francesco Nannoni; Riccardo Santolini; Giuseppe Protano
Source:
Waste management 2015 v.43 pp. 353-362
ISSN:
0956-053X
Subject:
antimony; cadmium; cell membranes; chromium; cobalt; copper; emissions; environmental impact; landfills; lead; lichens; monitoring; municipal solid waste; nickel; photosynthesis; pollution; risk; soil; zinc; Italy
Abstract:
... This paper presents the results of a biomonitoring study to evaluate the environmental impact of airborne emissions from a municipal solid waste landfill in central Italy. Concentrations of 11 heavy elements, as well as photosynthetic efficiency and cell membrane integrity were measured in Evernia prunastri lichens transplanted for 4months in 17 monitoring sites around the waste landfill. Heavy el ...
DOI:
10.1016/j.wasman.2015.06.013

15. Influence of moisture content and temperature on degree of carbonation and the effect on Cu and Cr leaching from incineration bottom ash

Author:
Wenlin Yvonne Lin; Kim Soon Heng; Xiaolong Sun; Jing-Yuan Wang
Source:
Waste management 2015 v.43 pp. 264-272
ISSN:
0956-053X
Subject:
bottom ash; carbonation; chromium; copper; correlation; indole butyric acid; leaching; municipal solid waste; pH; temperature; waste management; water content; Singapore
Abstract:
... This study investigated the influence of moisture content and temperature on the degree of carbonation of municipal solid waste (MSW) incineration bottom ash (IBA) from two different incineration plants in Singapore. The initial rate of carbonation was affected by the nominal moisture content used. Carbonation temperature seemed to play a part in changing the actual moisture content of IBA during ...
DOI:
10.1016/j.wasman.2015.05.029

16. Integrated gasification and plasma cleaning for waste treatment: A life cycle perspective

Author:
Sara Evangelisti; Carla Tagliaferri; Roland Clift; Paola Lettieri; Richard Taylor; Chris Chapman
Source:
Waste management 2015 v.43 pp. 485-496
ISSN:
0956-053X
Subject:
acidification; biodegradability; biomass; carbon; cleaning; electricity; environmental impact; feedstocks; fuels; gasification; global warming; heat; industrial wastes; life cycle assessment; markets; municipal solid waste; oxygen production; production technology; steam; thermal properties; waste treatment; wood; United Kingdom
Abstract:
... In the past, almost all residual municipal waste in the UK was landfilled without treatment. Recent European waste management directives have promoted the uptake of more sustainable treatment technologies, especially for biodegradable waste. Local authorities have started considering other options for dealing with residual waste. In this study, a life cycle assessment of a future 20MWe plant using ...
DOI:
10.1016/j.wasman.2015.05.037

17. Mathematical modeling of olive mill waste composting process

Author:
Ioanna A. Vasiliadou; Abu Khayer Md. Muktadirul Bari Chowdhury; Christos S. Akratos; Athanasia G. Tekerlekopoulou; Stavros Pavlou; Dimitrios V. Vayenas
Source:
Waste management 2015 v.43 pp. 61-71
ISSN:
0956-053X
Subject:
bulking agents; carbon dioxide production; cellulose; composting; food processing wastes; heat transfer; hydrolysis; leaves; lignin; microbial biomass; model validation; nitrogen; organic matter; oxygen; oxygen consumption; phosphorus; prediction; simulation models; temperature; water content
Abstract:
... The present study aimed at developing an integrated mathematical model for the composting process of olive mill waste. The multi-component model was developed to simulate the composting of three-phase olive mill solid waste with olive leaves and different materials as bulking agents. The modeling system included heat transfer, organic substrate degradation, oxygen consumption, carbon dioxide produ ...
DOI:
10.1016/j.wasman.2015.06.038

18. Mineralogical analysis of dust collected from typical recycling line of waste printed circuit boards

Author:
Fangfang Wang; Yuemin Zhao; Tao Zhang; Chenlong Duan; Lizhang Wang
Source:
Waste management 2015 v.43 pp. 434-441
ISSN:
0956-053X
Subject:
aluminum; analytical methods; bromine; byproducts; chlorine; copper; crushing; environmental protection; fluorine; heat treatment; iron; lead; magnetic materials; magnetic separation; manganese; particle size; recycling; zinc
Abstract:
... As dust is one of the byproducts originating in the mechanical recycling process of waste printed circuit boards such as crushing and separating, from the viewpoints of resource reuse and environmental protection, an effective recycling method to recover valuable materials from this kind of dust is in urgent need. In this paper, detailed mineralogical analysis on the dust collected from a typical ...
DOI:
10.1016/j.wasman.2015.06.021

19. Model of the sewage sludge-straw composting process integrating different heat generation capacities of mesophilic and thermophilic microorganisms

Author:
I. Białobrzewski; M. Mikš-Krajnik; J. Dach; M. Markowski; W. Czekała; K. Głuchowska
Source:
Waste management 2015 v.43 pp. 72-83
ISSN:
0956-053X
Subject:
aeration; bioreactors; composting; equations; heat; mass transfer; mathematical models; microbial growth; prediction; sewage; sewage sludge; straw; summer; temperature; thermophilic microorganisms; winter
Abstract:
... A mathematical model integrating 11 first-order differential equations describing the dynamics of the aerobic composting process of sewage sludge was proposed. The model incorporates two microbial groups (mesophiles and thermophiles) characterized by different capacities of heat generation. Microbial growth rates, heat and mass transfer and degradation kinetics of the sewage sludge containing stra ...
DOI:
10.1016/j.wasman.2015.05.036

20. Optimisation of sewage sludge anaerobic digestion through co-digestion with OFMSW: Effect of collection system and particle size

Author:
Gracia Silvestre; August Bonmatí; Belén Fernández
Source:
Waste management 2015 v.43 pp. 137-143
ISSN:
0956-053X
Subject:
anaerobic digestion; beta oxidation; biomass; hydrolysis; methane production; methanogens; municipal solid waste; particle size; sewage sludge; toxicity; waste management
Abstract:
... The effect of organic fraction of municipal solid waste (OFMSW) loading rate and particulate size on the sewage sludge (SS) mesophilic anaerobic co-digestion was assessed in continuous stirred tank reactor at hydraulic retention time of 20days. The SS–OFMSW mixture composed by 54% of the volatile solids fed (inlet-VS), at OLR of 3.1kgCODm−3d−1 (1.9kgVSm−3d−1), showed the highest increment on the v ...
DOI:
10.1016/j.wasman.2015.06.029